Ordering Information, Page 2 of, Sk Sy | Philips SKSGPK254 specification

Skyway SKS2GPK228 or 254

Page 2 of 2

2' x 4' Recessed Fluorescent, Tri-Lens Frame Static or Air Supply/Return, 2 or 3 Lamp T5 or T5HO

Model No. SKS2GPK228120WA

LER = FP - 64.1 IW - 54.5 BF - 0.92 Comparative yearly lighting energy cost per

1000 lumens = $3.74

Report Number: G2008274

Catalog Number: SKS2GPK228120WA

Lamps: (2) F28T5/835/ALTO

Luminaire: Skyway Recessed 2' x 4' fixture prismatic acrylic lens assembly.

Ballast: ST232120E

Report is based on 2600 Lumens per lamp. Efficiency: 73.0%

CIE Type-Direct-Indirect
Plane:					0-Deg			90-Deg
Spacing Criteria:						1.2			1.2
Shielding Angles:						90			90
Plane:					0-Deg			90-Deg
Luminous Length:					45.600			21.600
COEFFICIENTS OF UTILIZATION –
ZONAL CAVITY METHOD. EFFECTIVE
FLOOR CAVITY REFLECTANCE 0.200
RC		80			50			30
RW	70	50	30	50	30	10	50	30	10
01	81	78	75	73	70	69	70	69	67
02	74	69	65	65	62	59	63	60	58
03	68	62	56	58	54	51	57	53	50
04	63	55	50	53	48	44	51	47	44
05	59	50	44	48	43	39	46	42	39
06	54	46	40	44	39	35	42	38	35
07	51	42	36	40	35	31	39	34	31
08	47	38	32	37	32	28	36	31	28
09	44	35	30	34	29	26	33	29	26
10	42	33	27	32	27	23	31	26	23

CANDELA DISTRIBUTION

	0.0	45.0	90.0	FLUX
0	1814	1814	1814
5	1789	1784	1784	169
15	1690	1687	1716	479
25	1521	1542	1608	715
35	1271	1316	1341	810
45	859	867	853	673
55	505	559	511	486
65	282	298	280	299
75	143	128	112	140
85	13	10	6	24
90	10	9	5

ZONAL LUMEN SUMMARY

ZONE	LUMENS	% LAMP	% FIXT
00-030	1363	26.2	35.9
00-040	2173	41.8	57.3
00-060	3333	64.1	87.8
00-090	3796	73.0	100.0
90-180	0000	0.0	000.0
00-180	3796	73.0	100.0

LUMINANCE DATA IN CANDELA/SQ. METER

AVERAGE AVERAGE AVERAGE AVERAGE

IN DEG.	0-DEG. 45-DEG. 90-DEG.
45	1911.	1929.	1898.
55	1385.	1533.	1401.
65	1050.	1109.	1042.
75	869.	778.	681.
85	235.	180.	108.

Model No. SKS2GPK254UNVPG

LER = FP - 56.9 IW - 114.9 BF - 1.0 Comparative yearly lighting energy cost per

1000 lumens = $4.21

Report Number: G2008317

Catalog Number: SKS2GPK254UNVPG

Lamps: (2) F54T5/835/HO/ALTO

Luminaire: Skyway Recessed 2' x 4' fixture prismatic acrylic lens assembly.

Ballast: ICN-2S25-90C

Report is based on 4500 Lumens per lamp. Efficiency: 72.7%

CIE Type-Direct-Indirect
Plane:					0-Deg			90-Deg
Spacing Criteria:						1.2			1.3
Shielding Angles:						90			90
Plane:					0-Deg			90-Deg
Luminous Length:					45.600			21.600
COEFFICIENTS OF UTILIZATION –
ZONAL CAVITY METHOD. EFFECTIVE
FLOOR CAVITY REFLECTANCE 0.200
RC		80			50			30
RW	70	50	30	50	30	10	50	30	10
01	80	77	74	72	70	68	69	68	66
02	73	68	62	64	61	58	62	59	56
03	67	60	55	57	53	49	55	52	48
04	62	54	48	51	47	43	50	46	42
05	57	49	43	46	41	38	45	41	37
06	53	44	38	42	37	33	41	36	33
07	50	40	34	39	33	30	38	33	29
08	46	37	31	35	30	27	35	30	27
09	43	34	28	33	28	24	32	27	24
10	41	31	26	30	25	22	30	25	22

CANDELA DISTRIBUTION

	0.0	45.0	90.0	FLUX
0	2812	2812	2812
5	2790	2790	2790	265
15	2668	2666	2690	755
25	2446	2470	2551	1145
35	2107	2174	2281	1356
45	1576	1541	1527	1200
55	938	1009	935	880
65	524	581	525	568
75	291	263	252	299
85	86	63	58	77
90	13	12	7

ZONAL LUMEN SUMMARY

ZONE	LUMENS	% LAMP	% FIXT
00-030	2165	24.1	33.1
00-040	3521	39.1	53.8
00-060	5601	62.2	85.6
00-090	6545	72.7	100.0
90-180	0000	0.0	000.0
00-180	6545	72.7	100.0

LUMINANCE DATA IN CANDELA/SQ. METER

AVERAGE AVERAGE AVERAGE AVERAGE

IN DEG.	0-DEG. 45-DEG. 90-DEG.
45	3506.	3428.	3397.
55	2573.	2767.	2564.
65	1950.	2163.	1954.
75	1769.	1599.	1532.
85	1552.	1137.	1047.

Ordering Information

Explanation of Catalog Number. Example: SKS2GPK254UNVPG

Skyway

Recessed

Fluorescent

Body Style:

Fixture

Ceiling Type:

Side Lens:

Center Lens:

Lamp

Lamp:

Voltage:

Options:

S = Static

Width

G = Standard

P= Frost White

K= Pattern 19

Quantity

(By Others)

120, 277 or

Add appropriate

A = Air

Grid

Acrylic Lens

.156 Virgin

2=2 Lamp

28=T5 28W

UNV=120-277

suffix to catalog

T = Slot Grid

Acyrlic Lens

3=3 Lamps

54=T5HO 54W

no., ie: (A)

(Nominal 48")

Ballast Type:

Standard Skyway

<20THD <10THD

1 or 2 Lamp 28W Elec. T5

–

PI ††

1 or 2 Lamp 28W Elec. T5

–

PG ††

For NYC Code – I.B.E.W. Manufactured

1 or 2 Lamp 54W Elec. T5HO –

PG ††

1-3 Lamp 54W Elec. T5HO

–

PU ††

NK	For NYC Code – Local 3 Manufactured

Options/AccessoriesFusing: Internal fast blow fusing: SUFFIX: A.Internal slow blow fusing: SUFFIX: C.Drywall Kit: Order Catalog Number: FK92X4.Electrical Wiring Options: Consult factory.For motion or light sensor: See Folio OA20-10 and OA20-30.Specifications

Performance: In an installation of 2 lamp 28W luminaires in a room cavity ratio of 1, with reflectance 80% ceiling, 50% wall, 20% floor, the C.U. shall not be less than .78. To reduce glare the average brightness at 65° shall not exceed 1109 candelas per square meter. To control veiling reflections, luminaire output in the 30°-90° zone shall not be less than 64.1%.

Air Handling: (SKA only) side air passages for air supply or air return. Supply air is discharged vertically. Optional side closure strips. Air return is also provid- ed through the lamp compartment through fixture body ends.

Materials: Chassis parts are die-formed code gauge cold rolled steel. Housing has side rails hemmed over and housing ends turned-in for safe handling.

Finish: Chassis exterior–black baked polyester enamel. Cavity–white baked polyester enamel minimum 86% reflectance. Rust preventative undercoating. Reflectors- 95% reflective white powder coated.

††Instant Start (120, 277 or UNV) ††Program Rapid Start (UNV only)

Specifications (continuned)

Lens: Proprietary high quailty frost white acrylic and clear conical prism lens assembly.

Electrical: Thermally protected class “P’ ballast C.B.M. approved, non PCB. If K.O. is within 3" of ballast, use wire suitable for at least 90°.

UL Listed for damp locations. Labels: I.B.E.W./UL and ULc Listed.

This product may have a mercury containing lamp. Manage in accord with Disposal Laws. See: www.lamprecycle.org

Job Information Type:

For Factory Technical Information: (978) 657-7600 • Fax (978) 658-0595

631 Airport Road, Fall River, MA 02720 • (508) 679-8131 • Fax (508) 674-4710 We reserve the right to change details of design, materials and finish.

Section 5/Folio MA12-16

Lightolier is a Philips group brand